Carbon dioxide and water-based spraying combined fire extinguishing system for vehicle cabin of roll-on-roll-off ship
By employing a combined carbon dioxide and water-based spray fire extinguishing system in the vehicle compartment of a roll-on/roll-off ship, and combining fire monitoring with automatic selection of extinguishing methods, the problems of accidental carbon dioxide spraying and secondary fires in the vehicle compartment of a roll-on/roll-off ship have been solved, achieving efficient, safe, and economical fire extinguishing results.
Patent Information
- Application Number
- CN202520302101.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing carbon dioxide fire suppression systems in the vehicle compartments of roll-on/roll-off ships have problems such as misjudging fire situations leading to wasted carbon dioxide, being unable to effectively extinguish fires involving new energy vehicles, and posing a risk of secondary fires.
The system employs a combination of carbon dioxide and water-based spray fire extinguishing system, along with fire zone monitoring devices, main fire hydrant, branch fire hydrant, water intake pipe, fire control system, and cleaning system. It automatically selects the fire extinguishing method based on fire monitoring and performs cleaning after the fire is extinguished.
It improves fire extinguishing efficiency and safety, reduces carbon dioxide waste and the risk of secondary fires, adapts to fires involving both traditional and new energy vehicles, extends pipeline life, and reduces maintenance costs.
Smart Images
Figure CN223944816U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a roll on roll off ship fire extinguishing system, in particular to a roll on roll off ship vehicle cabin carbon dioxide and water base spray combined type fire extinguishing system. BACKGROUND
[0002] The fire fighting of the roll on roll off ship vehicle cabin is a major problem that cannot be ignored, and once on fire, it can lead to the damage of the whole cabin and the whole ship, and even the ship, causing huge life and property losses. At present, the roll on roll off ship is developing towards large scale, and the loading capacity of the vehicle cabin is getting larger and larger, and with the evolution of the automobile industry, new energy vehicles such as pure electric vehicles, hybrid vehicles, hydrogen energy vehicles and natural gas power vehicles are also loaded in large quantities in the roll on roll off ship, and the risk and harm of fire of new energy vehicles are higher than those of traditional fuel vehicles. These all put forward higher requirements for the fire fighting of the vehicle cabin.
[0003] Based on the requirements of regulations and practical needs, the roll on roll off ship vehicle cabin is generally equipped with a fixed fire extinguishing system, such as a fixed carbon dioxide fire extinguishing system or a fixed pressure water mist system, and the carbon dioxide fire extinguishing system is the most common one on the actual ship.
[0004] The usual practice is to set up a place specially storing carbon dioxide fire extinguishing agent, and a pipe is arranged for each vehicle cabin to connect the carbon dioxide release main pipe, so as to take carbon dioxide from the carbon dioxide storage container, and separate isolation valves are arranged near the main pipe of each branch pipe, and nozzles are uniformly arranged on the pipe in the cargo cabin, so that carbon dioxide can be effectively released and fill the whole cargo cabin as soon as possible, so as to achieve the purpose of fire extinguishing.
[0005] The main disadvantage of the carbon dioxide fire extinguishing system of the vehicle cabin is that it can only be released once regardless of the presence or absence of fire and the size of the fire. Thus, it is possible to waste carbon dioxide due to misjudgment of the fire, and further affect the subsequent safety of the ship. Moreover, carbon dioxide cannot effectively extinguish the fire caused by the thermal runaway of some new energy vehicles, which also increases the safety hazard of the vehicle cabin for automobile loading. In addition, some accidents have shown that the fire has not been completely extinguished after the release of carbon dioxide, and the opening of the cabin may cause secondary fire and endanger the safety of the crew.
[0006] In view of the above shortcomings, the utility model adopts the fire extinguishing mode of combination of carbon dioxide and water base spray to provide higher level protection for the vehicle cabin. CONTENT OF THE UTILITY MODEL
[0007] The utility model provides a kind of roll on roll off ship vehicle cabin carbon dioxide and water base spray combined type fire extinguishing system, roll on roll off ship is divided into multiple cabin, and combined type fire extinguishing system includes:
[0008] The fire partition monitoring device comprises a camera, a cruise thermal imaging probe and a monitoring sensor arranged in each cabin.
[0009] The carbon dioxide storage container stores liquid carbon dioxide.
[0010] The fire main pipe is provided with a plurality of input ends, a first input end of the fire main pipe is connected with the carbon dioxide storage container through a carbon dioxide release pipeline, and a carbon dioxide release total control valve is arranged on the carbon dioxide release pipeline.
[0011] The water taking pipe is connected with a second input end of the fire main pipe, is provided with a seawater pump, and has a horn water taking opening connected with seawater at the other end.
[0012] The fire branch pipe is connected with the fire main pipe at one end and arranged in different cabins at the other end, and each fire branch pipe is provided with a release isolation valve.
[0013] The fire control system is connected with the fire partition monitoring device, the carbon dioxide release total control valve, the seawater pump, the water inlet isolation valve and the release isolation valve, and the carbon dioxide release total control valve and the water inlet isolation valve cannot be opened.
[0014] Further, the fire main pipe and the fire branch pipe are made of galvanized carbon steel pipes.
[0015] Further, the fire main pipe and the fire branch pipe are both seamless steel pipes, the fire main pipe is connected with the fire branch pipe, the carbon dioxide storage container and the water taking pipe through flanges, and PTFE gaskets are arranged at the flange connection positions.
[0016] Further, the monitoring sensor comprises a particle sensor.
[0017] Further, the combined fire extinguishing system further comprises a cleaning system connected with a third input end of the fire main pipe, and the cleaning system comprises an air pump.
[0018] The advantages of the utility model lie in that:
[0019] 1) Low cost. Based on the existing system framework, additional equipment or pipeline is less, and the seawater used for spraying is convenient and low in cost.
[0020] 2) Low probability of carbon dioxide mis-spraying and waste. When potential fire risk is found, water-based spraying can be used to cool the target cargo hold first to reduce the risk of fire. When the fire spreads and cannot be controlled, carbon dioxide is used to extinguish the whole cabin. Thus, carbon dioxide mis-spraying can be effectively avoided, and the utilization rate of carbon dioxide is improved.
[0021] 3) Better extinguishing effect and lower risk of secondary fire. When a fire occurs, after releasing carbon dioxide to extinguish the whole cabin, water-based spraying is used for secondary fire extinguishing and cooling of the target cargo hold, which effectively enhances the extinguishing effect, avoids incomplete fire extinguishing, and reduces the risk of secondary fire.
[0022] 4) Through real-time monitoring of the fire partition monitoring device, the fire area can be accurately judged, unnecessary release of carbon dioxide is avoided, thereby saving fire extinguishing agent resources and improving the safety of the subsequent ship.
[0023] 5) The combination of carbon dioxide and water-based spraying extinguishing method can not only effectively deal with the fire of traditional fuel vehicles, but also provide more effective means of extinguishing the fire caused by battery thermal runaway of new energy vehicles, greatly reducing the safety hidden danger when the vehicle cabin is loaded with new energy vehicles.
[0024] 6) The fire main pipe and the fire branch pipe adopt galvanized carbon steel pipes, which effectively prolongs the service life of the fire main pipe and the fire branch pipe and reduces the maintenance cost. At the same time, the pipeline adopts seamless steel pipe and PTFE gasket, which ensures the corrosion resistance and reliability of the fire extinguishing system.
[0025] 7) The cleaning system can periodically purge the fire main pipe and the fire branch pipe to ensure the smoothness of the fire extinguishing system and improve the response speed and extinguishing efficiency of the fire extinguishing system.
[0026] In summary, the roll-on / roll-off ship vehicle cabin carbon dioxide and water-based spraying combined fire extinguishing system not only improves the extinguishing efficiency and safety, but also has good economy and reliability, providing more comprehensive and efficient fire protection for the roll-on / roll-off ship vehicle cabin. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0028] Fig. 1 is a structural schematic view of the roll-on / roll-off ship vehicle cabin carbon dioxide and water-based spraying combined fire extinguishing system of the present application;
[0029] Fig. 2 The control principle diagram of the utility model. DETAILED DESCRIPTION
[0030] In the following description, numerous specific details are set forth to provide a more thorough understanding of the present application. However, it will be apparent to one of skill in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present application.
[0031] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description in order to explain the technical scheme of the present application. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can also have other implementation manners.
[0032] Referring to Figs. 1-2 As shown in the figure, the utility model provides a kind of vehicle cabin carbon dioxide and water-based spray combined fire extinguishing system of roll-on / roll-off ship, roll-on / roll-off ship is divided into multiple cabin 1, combined fire extinguishing system includes fire zone monitoring device 100, carbon dioxide storage container 200, fire main pipe 300, fire branch pipe 400, water pipe 600, fire control system 500 and cleaning system 700.
[0033] Fire zone monitoring device 100
[0034] Fire zone monitoring device 100 includes camera 110, cruise thermal imaging probe 120 and monitoring sensor 130 arranged in each cabin.The camera 110 is used to collect the monitoring picture in cabin, cruise thermal imaging probe 120 is configured with holder, the cruise monitoring of thermal imaging probe can be realized by holder, and angle can be automatically adjusted according to the set path, to cover the range of entire cabin, early warning is realized as early as possible to discover local temperature anomaly.Monitoring sensor 130 is responsible for detecting temperature, smoke and flammable gas concentration and other parameters in cabin, these sensors are connected with fire control system 500 by wire, and monitoring data is transmitted in real time.When fire zone monitoring device 100 detects abnormal condition, for example, temperature rises, smoke concentration is too high or flammable gas concentration exceeds standard, system will immediately start alarm program.
[0035] Carbon dioxide storage container 200
[0036] Carbon dioxide storage container 200, liquid carbon dioxide is stored in carbon dioxide storage container 200, carbon dioxide storage container 200 has a certain pressure inside so that carbon dioxide can be stored in liquid form.
[0037] Fire main pipe 300
[0038] The fire main pipe 300 is provided with a plurality of input ends, and a first input end of the fire main pipe 300 is connected with the carbon dioxide storage container 200 through a carbon dioxide release pipeline 310, and a carbon dioxide release total control valve 311 is arranged on the carbon dioxide release pipeline 310, and the carbon dioxide release total control valve 311 is used to open / close the carbon dioxide fire extinguishing system, when the carbon dioxide release total control valve 311 is opened, the liquid carbon dioxide stored in the carbon dioxide storage container 200 is converted into gaseous carbon dioxide through the carbon dioxide release total control valve 311 and is delivered to the corresponding fire branch pipe 400. It should be noted that the temperature and pressure of the fire main pipe 300 are different from those of the carbon dioxide storage container 200, and the liquid carbon dioxide is automatically converted into gaseous carbon dioxide after passing through the fire main pipe 300, and the principle and the corresponding structure form realized are well known to those skilled in the art, and will not be described here.
[0039] Water taking pipe 600
[0040] The water taking pipe 600 is connected with a second input end of the fire main pipe 300, the water taking pipe 600 is provided with a seawater pump 610, and the other end of the water taking pipe 600 is provided with a trumpet-shaped water taking port 620 connected with seawater, and the trumpet-shaped water taking port 620 has the advantage that the design can effectively increase the cross-sectional area of the water flow, thereby improving the water taking efficiency. The water taking pipe 600 between the second input end and the seawater pump 610 is provided with a water inlet isolation valve 630, and the trumpet-shaped water taking port is provided with a biological prevention filter screen, and the biological prevention filter screen is a filter screen with a biological prevention coating on the surface, and the biological prevention filter screen can prevent marine organisms and sundries from entering the water taking pipe 600, and can also prevent marine organisms from adhering to the surface of the filter screen.
[0041] Fire branch pipe 400
[0042] The one end of the fire branch pipe 400 is connected with the fire main pipe 300, and the other end is arranged in different vehicle cabins 1, and each fire branch pipe 400 is provided with a release isolation valve 410, and the fire branch pipe 400 arranged in the vehicle cabin 1 is provided with a plurality of fire nozzles 411.
[0043] In an optional embodiment, the fire main pipe 300 and the fire branch pipe 400 bear the function of a carbon dioxide or seawater transportation pipeline, and higher requirements are put forward for the pipeline internal corrosion prevention, and in the present application, a seamless galvanized carbon steel pipe is used as the fire main pipe 300 and the fire branch pipe 400, which can effectively prevent the corrosion of seawater and carbon dioxide to the pipeline.
[0044] In order to further improve the durability and safety of the fire main pipe 300 and the fire branch pipe 400, the utility model also adopts a new type of connection mode. At the connection of the fire main pipe 300 and the fire branch pipe 400, special flange connectors are used, which have higher strength and corrosion resistance. The special flange connectors are made of stainless steel material, which improves their ability to resist seawater and carbon dioxide corrosion. In addition, in order to ensure the reliability of the connection, the influence of thermal expansion and contraction is also considered in the design of these flange connectors, and by setting appropriate expansion compensation structure, the entire fire pipe system can still maintain good sealing performance when the temperature changes.
[0045] PTFE (polytetrafluoroethylene) gaskets are provided at the flange connections. Due to its excellent high temperature resistance, corrosion resistance and low friction coefficient characteristics, PTFE gaskets can effectively prevent leakage problems at the flange connections in high temperature environments. In addition, PTFE gaskets also have good anti-aging performance and can maintain their physical and chemical properties stable during long-term use, thereby ensuring the long-term reliability of the fire pipe system.
[0046] Fire control system 500
[0047] The fire control system 500 is connected with the fire zone monitoring device 100, the carbon dioxide release master control valve 311, the seawater pump 610, the water inlet isolation valve 630 and the release isolation valve 410, and according to the different fire conditions, the carbon dioxide fire extinguishing system or the seawater fire extinguishing system is appropriately opened. It should be noted that the carbon dioxide release master control valve 311 and the water inlet isolation valve 630 cannot be opened at the same time.
[0048] The fire control system 500 will automatically or manually start the corresponding fire extinguishing measures according to the severity of the fire and the cabin position. According to the different fire conditions, selective carbon dioxide fire extinguishing or seawater fire extinguishing is carried out. For example, if the fire occurs in the vehicle cabin, the system will first start the seawater fire extinguishing, and when the fire spreads and cannot be controlled, the seawater fire extinguishing system is closed and the carbon dioxide is opened for whole cabin fire extinguishing. Thus, it can effectively avoid the mis-spraying of carbon dioxide and improve the utilization rate of carbon dioxide.
[0049] Cleaning system 700
[0050] In an optional embodiment, the combined fire extinguishing system also comprises a cleaning system 700 connected to the third input end of the fire main pipe 300, and the electric control part of the cleaning system 700 is connected to the fire control system 500. The cleaning system comprises an air pump, which inputs cleaning gas into the inside of the fire main pipe 300 and the fire branch pipe 400. When a fire branch pipe 400 triggers the carbon dioxide or water fire extinguishing system, carbon dioxide or seawater will remain on the inner wall of the pipe. Although the pipe is made of corrosion-resistant galvanized carbon steel pipe, in order to ensure the cleanliness and fire extinguishing effect of the pipe system, the cleaning system 700 can remove impurities and water vapor in the cleaning gas. Thus, when the air pump is working, the cleaning gas can not only remove the remaining substances on the inner wall of the pipe, but also ensure the purity of the cleaning gas, thereby avoiding pipe corrosion caused by impurities or moisture. Preferably, the starting time of the cleaning system 700 is after the completion of the seawater fire extinguishing, the carbon dioxide release main control valve 311 and the water inlet isolation valve 630 are closed, the release isolation valve 410 of the fire branch pipe 400 to be cleaned is opened, and then the cleaning system 700 is opened to input cleaning gas into the fire branch pipe 400 to clean and remove the remaining water in the pipe, thereby keeping the inside dry.
[0051] The working process of the utility model is as follows:
[0052] When the fire condition partition monitoring device 100 detects a fire, it will immediately send a signal to the fire control system 500. The fire control system 500 automatically decides whether to start the carbon dioxide fire extinguishing system or the seawater fire extinguishing system according to the severity and location of the fire. Of course, manual control is also possible.
[0053] If the seawater fire extinguishing system is selected, the fire control system 500 will start the seawater pump 610, seawater is sucked in through the water suction pipe 600, passes through the water inlet isolation valve 630, is then transported into the fire main pipe 300, and is then transported into the corresponding vehicle cabin 1 through the fire branch pipe 400 and extinguished through the fire nozzle 411. The seawater fire extinguishing system is suitable for extinguishing fires of solid materials, especially in situations where the carbon dioxide fire extinguishing system cannot be used.
[0054] If the carbon dioxide fire extinguishing system is selected, the fire control system 500 will open the carbon dioxide release main control valve 311 and close the water inlet isolation valve 630, and the carbon dioxide in the storage container 200 is released into the fire main pipe 300 through the release pipeline 310, then transported into the corresponding vehicle cabin 1 through the fire branch pipe 400, and extinguished through the fire nozzle 411. During the carbon dioxide fire extinguishing process, because the density of carbon dioxide is greater than that of air, it will quickly settle at the bottom of the cabin and cover the fire source, thereby achieving the effect of suffocating the flame. At the same time, because carbon dioxide is an inert gas, it will not chemically react with the burning material, so it will not cause damage to the electronic equipment inside the vehicle.
[0055] In addition, the target cargo hold can be cooled by water-based spraying first to reduce the risk of fire. When the fire spreads and cannot be controlled, the water inlet isolation valve 630 is closed and carbon dioxide is used for whole-cabin fire extinguishing. Thus, the mis-spraying of carbon dioxide can be effectively avoided, and the utilization rate of carbon dioxide is improved.
[0056] After the fire is extinguished, the fire control system 500 closes the carbon dioxide release master control valve 311 or the water inlet isolation valve 630, and starts the cleaning system 700 as needed. The cleaning system 700 inputs the purge gas into the fire main pipe 300 and the fire branch pipe 400 through the air pump to remove the residues on the inner wall of the pipe. The purge gas enters the corresponding fire branch pipe 400 through the release isolation valve 410, ensuring the cleanliness of the inside of the pipe and avoiding corrosion caused by residues.
[0057] In summary, the utility model provides a kind of efficient, safe fire extinguishing system, can be automatically selected suitable fire extinguishing mode according to fire, and after fire extinguishing, effective cleaning is carried out, ensure the long-term stable operation of fire pipe system.
[0058] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above specific embodiments, and the equipment and structures not fully described should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the utility model using the disclosed methods and technical contents without departing from the scope of the technical solutions of the utility model, or modify equivalent embodiments with equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the utility model, which does not depart from the content of the technical solutions of the utility model, still belongs to the scope of protection of the technical solutions of the utility model.
Claims
1. A combined CO2 and water-based sprinkler system for vehicle holds of a ro-ro ship, the ro-ro ship being divided into a plurality of holds (1), characterized in that, The combined fire extinguishing system comprises: a fire partition monitoring device (100) comprising a camera (110), a cruise thermal imaging probe (120) and a monitoring sensor (130) arranged in each cabin, wherein the cruise thermal imaging probe is configured with a holder; a carbon dioxide storage container (200) for storing liquid carbon dioxide; a fire main pipe (300) provided with multiple input ends, wherein a first input end of the fire main pipe (300) is connected with the carbon dioxide storage container (200) through a carbon dioxide release pipeline (310), and a carbon dioxide release master control valve (311) is arranged on the carbon dioxide release pipeline (310); a water intake pipe (600) connected with a second input end of the fire main pipe (300), wherein the water intake pipe (600) is provided with a seawater pump (610), and the other end of the water intake pipe (600) is provided with a horn water inlet (620) connected with seawater, and a water inlet isolation valve (630) is arranged in the water intake pipe (600) between the second input end and the seawater pump (610), and the horn water inlet is provided with a biological filter screen; a fire branch pipe (400), one end of each of the fire branch pipes (400) is connected with the fire main pipe (300), and the other end is arranged in different cabins (1), wherein each of the fire branch pipes (400) is provided with a release isolation valve (410), and the fire branch pipe (400) arranged in the vehicle cabin (1) is provided with multiple fire nozzles (411); a fire control system (500) connected with the fire partition monitoring device (100), the carbon dioxide release master control valve (311), the seawater pump (610), the water inlet isolation valve (630) and the release isolation valve (410), wherein the carbon dioxide release master control valve (311) and the water inlet isolation valve (630) cannot be opened.
2. A CO2 and water-based sprinkler combined fire extinguishing system for a vehicle hold of a ro-ro ship as claimed in claim 1, characterized in that, The fire main pipe (300) and the fire branch pipe (400) are made of galvanized carbon steel pipes.
3. A CO2 and water-based sprinkler combined fire extinguishing system for a vehicle hold of a ro-ro ship as claimed in claim 2, characterized in that, The fire main pipe (300) and the fire branch pipe (400) are both seamless steel pipes, the fire main pipe (300) is connected with the fire branch pipe (400), the carbon dioxide storage container (200) and the water intake pipe (600) through flanges, and a PTFE gasket is arranged at the flange connection.
4. A CO2 and water-based sprinkler combined fire extinguishing system for a vehicle hold of a ro-ro ship as claimed in claim 1, characterized in that, The monitoring sensor comprises a particle sensor.
5. A CO2 and water-based sprinkler combined fire extinguishing system for a vehicle hold of a ro-ro ship as claimed in claim 1, characterized in that, The combined fire extinguishing system further comprises a cleaning system (700) connected with a third input end of the fire main pipe (300), wherein the cleaning system comprises an air pump, and a purge gas is input into the inside of the fire main pipe (300) and the fire branch pipe (400) through the air pump for cleaning.